Robert.Taylor@circle.UUCP (Robert Taylor) (11/05/89)
Brad, I have run into trouble with my newly finished FRANCES memory expansion board. The system boots fine with the LUCAS/FRANCES combination installed, but there is an addressing problem when accessing the FRANCES memory. After doing a modeload, I use the Aztec DB debugger to check out the memory. The data I enter is fine, but storing a byte at say $400000 causes the same byte to appear at $400000, $400040, $400080, and $4000c0. By my figures this should mean something is wrong on A6 and A7 or with MQ1. I can find no shorts or the like. Using a logic probe shows activity on all of these lines. I'm baffled. Anything you can add would help. Thanks. Robert Taylor -- Robert Taylor - via FidoNet node 1:121/1 InterNet: Robert.Taylor@circle.UUCP UUCP: ...!uwvax!geowhiz!circle!Robert.Taylor